ISO 7379-8-M6-16 ISO 7379-8-M6-20 ISO 7379-8-M6-30 ISO 7379-8-M6-35 ISO 7379-8-M6-45 ISO 7379-8-M6-50 ISO 7379-8-M6-55 ISO 7379-8-M6-60 ISO 7379-8-M6-65 ISO 7379-8-M6-90